EP1761438A4 - Leak proof closure device with spring member - Google Patents
Leak proof closure device with spring memberInfo
- Publication number
- EP1761438A4 EP1761438A4 EP05763162A EP05763162A EP1761438A4 EP 1761438 A4 EP1761438 A4 EP 1761438A4 EP 05763162 A EP05763162 A EP 05763162A EP 05763162 A EP05763162 A EP 05763162A EP 1761438 A4 EP1761438 A4 EP 1761438A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- male
- female
- closure element
- spring member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/15—Bag fasteners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/26—Slit closing means including guides on opposite edges of slit and slidable bridging component
- Y10T24/262—Slit closing means including guides on opposite edges of slit and slidable bridging component with hand-actuated lever for shifting bridging component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face
- Y10T24/45157—Zipper-type [e.g., slider]
- Y10T24/45168—Zipper-type [e.g., slider] for container [e.g., bag]
Definitions
- the present invention relates generally to a closure device and, more particularly, to a resealable leak proof closure device with a spring member.
- the invention is particularly well suited for fastening' flexible storage containers, including plastic bags.
- closure devices for closure of containers, including plastic bags, are generally well known.
- the closure device and the associated container are formed, typically, from thermoplastic materials.
- the manufacture of closure devices by extrusion is generally known to those skilled in the art of closure devices.
- Closure devices are generally either extruded and then attached to the container or integrally formed with the container.
- closure devices are resealable, which allows the container to be reused.
- a closure device provides relatively high resistance to opening from interior the container while rendering the container relatively easy to open from the exterior.
- closure devices typically use a combination of interlocking hooks.
- the contact surfaces between the interlocking hooks provide the primary seal for the container.
- One difficulty with this design may be providing a secure closure and an air tight or leak proof seal while maintaining a closure that is easy to occlude as well as open from the exterior.
- the interlocking hooks may not contact each other, yet remain occluded, because of slight variations in the hooks or because the conditions under which the closure device is used cause the hooks to not contact each other as shown in Fig. 33. If, while in an occluded position, the interlocking hooks are not intimately mated, the closure device may not adequately provide an air tight or leak proof seal.
- the present invention provides an improved closure device for flexible containers. More particularly, the present invention is directed to a closure device that provides improved sealing action for a flexible container, a container including such a closure device and a method of manufacturing the closure device.
- the closure device provides male and female closure elements that interlockingly engage with one another and extend a predetermined length. Typically, this length is the width of the flexible container to which the closure device is designed to apply. Both the male and the female closure elements include hook portions that facilitate the interlocking engagement of the closure device while in an occluded position. Furthermore, at least one of the closure elements includes a spring member to facilitate the sealing action of the closure device. The spring member increases the seal of the closure device by increasing the contact forces between the interlocking hook portions causing the hook portions to more intimately mate. It also increases the sealing action by creating an additional contact surface that creates an additional impediment that restricts the contents of the container from leaking therefrom.
- the closure device may include multiple spring members. These additional spring members may be attached to either the male or female closure elements. By providing additional spring members, the closure elements are more securely interlockingly engaged and more contact surfaces are provided to restrict the contents of the bag from leaking therefrom.
- FIG. 1 is a perspective view of a flexible container including a closure device in accordance with the invention.
- FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1 of one embodiment of a closure device in accordance with the invention, shown in a non- occluded position.
- FIG. 3 is a cross-sectional view of the closure device of FIG. 2, shown in an occluded position.
- FIGS. 4 - 7 are cross-sectional views of the embodiment of the invention illustrated in FIG. 2 illustrating the typical occlusion sequence of the closure devices in accordance with the invention.
- FIG. 8 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 9 is a cross-sectional view of the closure device of FIG. 8, shown in an occluded position.
- FIG. 10 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 11 is a cross-sectional view of the closure device of FIG. 10, shown in an occluded position.
- FIG. 12 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 13 is a cross-sectional view of the closure device of FIG. 12, shown in an occluded position.
- FIG. 14 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 15 is a cross-sectional view of the closure device of FIG. 14, shown in an occluded position.
- FIG. 16 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 17 is a cross-sectional view of the closure device of FIG. 16, shown in an occluded position.
- FIG. 18 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 19 is a cross-sectional view of the closure device of FIG. 18, shown in an occluded position.
- FIG. 20 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 21 is a cross-sectional view of the closure device of FIG. 20, shown in an occluded position.
- FIG. 22 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 23 is a cross-sectional view of the closure device of FIG. 22, shown in an occluded position.
- FIG. 24 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 25 is a cross-sectional view of the closure device of FIG. 24, shown in an occluded position.
- FIG. 26 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 27 is a cross-sectional view of the closure device of FIG. 26, shown in an occluded position.
- FIG. 28 is a cross-sectional view of another embodiment of the closure device, shown in a non-occluded position.
- FIG. 29 is a cross-sectional view of the closure device of FIG. 28, shown in an occluded position.
- FIG. 30 is a cross-sectional view of a closure device in accordance with the invention, wherein male and female closure elements are on the same side of a film.
- FIG. 31 is a cross-sectional view of a closure device in accordance with the invention, wherein male and female closure elements are on opposite sides of a film.
- FIG. 32 is a cross-sectional view of another embodiment of the closure device.
- FIG. 33 is a cross-sectional view of a closure device wherein the hooks are not contacting each other.
- FIG. 34 is a cross-sectional view of a closure device wherein the fit is loose.
- FIG. 35 is a cross-sectional view of another embodiment of a closure device.
- FIG. 1 illustrates a flexible container according to the present invention in the form of aplastic bag 100 including a sealable longitudinally extending closure device 102.
- the closure device 102 extends substantially the width of the bag 100.
- the bag 100 is formed from a thin plastic film 104 which is U-folded at the bottom 106 of the bag 100.
- the film 104 establishes sidewalls 108, 110 for the container.
- the sidewalls 108, 110 are heat sealed at vertical edges 112, 114, thereby forming a container.
- the ends of the closure device 102 are heat sealed.
- the sidewalls 108, 110 extend beyond the closure device 102 to provide mouth portions 116, 118 to simplify opening of the bag 100 and, more particularly, the closure device 102.
- the entire closure device 102 is typically occluded by beginning at one edge of the bag and working toward the other edge of the bag such as, from edge 112 to edge 114.
- FIG. 2 is a cross-sectional illustration of a leak proof closure device 102 in accordance with one embodiment of the present invention, shown in a non-occluded position.
- the closure device 102 comprises female and male closure elements 130, 132, which interlockingly engage over a predetermined length.
- the female and male closure elements 130, 132 maybe extruded and then attached to a side wall of a container.
- the female closure element 130 includes a base portion 134, a pair of spaced-apart, parallely disposed webs 136, 138, a pair of female hook portions 140, 142, and a spring member 144.
- the webs 136, 138 extend from the base portion 134 and include and terminate in the female hook portions 140, 142, respectively.
- the female hook portions 140, 142 extend toward one another.
- the female hook portions 140, 142 include guide surfaces 146, 148 which serve to guide the female closure element 130 and, more particularly, the female hook portions 140, 142 during occlusion of the female and male closure elements 130, 132.
- the spring member 144 extends from the base portion 134.
- the base portion 134, the webs 136, 138, and the spring member 144 of the female closure element 130 are integrally formed in a unitary body.
- the male closure element 132 which is adapted to interlockingly engage and mate with the female closure element 130, includes a base portion 150, a pair of spaced-apart, parallely disposed webs 152, 154, a pair of male hook portions 156, 158 and a pair of spaced-apart, parallely disposed guide wings 160, 162.
- the webs 152, 154 extend from the base portion 150 and include and terminate in the male hook portions 156, 158, respectively.
- the male hook portions 156, 158 extend away from one another and are adapted to engage the female hook portions 140, 142, respectively.
- the male hook portions 156, 158 include guide surfaces 164, 166 which serve' to guide the male closure element 132 and, more particularly, the male hook portions 156, 158 during occlusion of the female and male closure elements 130, 132.
- the guide wings 160, 162 extend from the base portion 150 and are disposed parallel to the webs 152, 154. Typically, the base portion 150, webs 136, 138, and guide wings 160, 162 of the male closure element 132 are integrally formed in a unitary body.
- FIG. 3 illustrates the closure device 102 in FIG. 2, but shown in an occluded position.
- the female hook portions 140, 142 interlockingly engage the male hook portions 156, 158.
- female hook portion 140 engages male hook portion 156, generally, at contact surface 168
- female hook portion 142 engages male hook portion 158, generally, at contact surface 170.
- Contact forces between the engaged hook portions resist opening the container.
- the contact surfaces 168, 170, where the hook portions engage one another provide seals for closure device 102.
- the closure device 102 defines an interior 172 and an exterior 174 of a container.
- the spring member 144 extends towards the interior 172 of the container.
- the spring member 144 is curved.
- the spring member may have other shapes.
- the spring member may be a substantially straight member or a "z-shaped" member.
- the spring member 144 which extends from the base portion 134 of the female closure element 130, acts upon the male hook portion 158, which is adjacent the interior 172 of the container. By acting on the male hook portion 158, the spring member 144 forces the male hook portion 158 against the female hook portion 142, which the male hook portion 158 engages.
- the spring member 144 by acting on the male hook portion 158, the spring member 144 causes the female hook portion 142 to be drawn toward the male hook portion 158. Together these actions cause a more intimate mating and sealing of male hook portion 158 and the female hook portion 142 at contact surface 170. As well as increasing the seal at contact surface 170, the spring member 144 provides an additional seal at contact surface 176, which is where the spring member 144 acts upon the male hook portion 158. Thus, the spring member 144 substantially increases the sealing action of the closure device 102 while in the occluded position by increasing the sealing action at contact surface 170 as well as providing an additional seal at contact surface 176. As disclosed below in other embodiments of the invention, additional spring members may be added to the closure device. These additional spring members provide additional contact surfaces that act as seals by restricting the contents of the bag and preventing them from leaking. The spring members also improve the sealing action between the interlockingly engaged male and female hook portions by improving the engagement of the closure elements.
- FIGS. 4-7 illustrate the general occlusion sequence of a closure device 102 according to the present invention.
- FIG. 4 illustrates the beginning of the occlusion sequence, wherein the guide surfaces 146, 148 of the female hook portions 140, 142 and the guide surfaces 164, 166 of the male hook portions 156, 158 begin to contact.
- guide surface 146 of female hook portion 140, and guide surface 164 of male hook portion 156 begin to contact one another.
- Guide surface 148 of female hook portion 142 and guide surface 166 of male hook portion 158 begin to contact one another. If the female and male closure elements 130, 132 are not aligned properly at this time, the guide wings 160, 162 assist in aligning the closure elements 130, 132 for proper occlusion.
- the female and male closure elements 130, 132 have begun to be pressed together. As the closure elements 130, 132 come closer together, the guide surfaces 146, 148 of the female hook portions 140, 142, respectively, begin to slide relative to the guide surfaces 164, 166 of the male hook portions 156, 158, respectively. In addition, the webs 136, 138 of the female closure element 130 begin to deflect resiliently away from one another, while the webs 152, 154 of the male closure element 132 begin to deflect resiliently toward one another. [0049] In FIG. 6, the female and male closure elements 130, 132 are pressed closer together, as compared to FIG. 5.
- the guide surfaces 146, 148 of the female hook portions 140, 142, respectively, continue to slide relative to the guide surfaces 164, 166 of the male hook portions 156, 158, respectively.
- Webs 136, 138 of the female closure element 130 increasingly deflect resiliently away from one another.
- the webs 152, 154 of the male closure element 132 increasingly deflect resiliently toward one another.
- the spring member 144 begins to contact the guide surface 166 of the male hook portion 158 at contact surface 176.
- the female hook portions 140, 142 substantially engage the male hook portions 156, 158, respectively. Furthermore, the webs 136, 138 of the female closure element 130 and the webs 152, 154 of the male closure element 132 return to a substantially un-deflected state that is substantially similar to the un-deflected state in FIG. 4. However, it should be noted that some deflection of the webs may exist in the occluded position. [0051] In this occluded position, the spring member 144 is deflected resiliently substantially towards the base portion 134 of the female closure element 130.
- FIGS. 8 and 9 illustrate another embodiment of the claimed invention in the non-occluded and occluded positions, respectively.
- the spring member 244 that extends from the base portion 234 of the female closure element 230 extends towards the exterior 274 of the container.
- the spring member 244 acts upon a male hook portion 256 adjacent to the exterior 274 of the container while in the occluded position.
- the spring member 244 acts upon guide surface 264 at contact surface 276.
- FIGS. 10 and 11 illustrate a further embodiment of a closure device in accordance with the invention in the non-occluded and occluded positions, respectively.
- This embodiment is similar to and is a combination of the embodiments in FIGS. 2 and 8.
- two spring members 344, 378 extend from the base portion 334 of the female closure element 330.
- spring member 344 acts upon the male hook portion 356 adjacent to the exterior 374 of the container at contact surface 376.
- Spring member 378 acts upon the male hook portion 358 adjacent to the interior 372 of the container at contact surface 380.
- FIG. 12 illustrates a further embodiment of the claimed invention, shown in a non-occluded position. In FIG.
- the female closure element 430 includes spring member 444 and is similar to that disclosed in FIG. 2.
- the male closure element 432 of this embodiment includes a spring member 478 that extends from base portion 450.
- the spring member 478 is disposed between and is substantially parallel to the web 452 and the guide wing 460 that are adjacent to the exterior 474 of a container.
- FIG. 13 illustrates the embodiment in FIG. 12 in the occluded position.
- the spring member 478 extends towards the interior 472 of the container and it is integrally attached to the base portion 450. Li this embodiment, the spring member 478 acts upon the female hook portion 440 adjacent to the exterior 474 of the container.
- FIGS. 14 and 15 illustrate a further embodiment of the claimed invention, shown in a non-occluded and an occluded position, respectively.
- This embodiment is similar to the embodiment in FIGS. 12 and 13.
- This other embodiment similarly includes a spring member 544 that extends from the base portion 534 of the female closure element 530.
- the spring member 578 that extends from the base portion 550 of the male closure element 532 extends towards the exterior 574 of the container. Similar to the embodiment in FIG. 13, the spring member 578 in this embodiment acts upon the female hook portion 540 adjacent to the exterior 574 of the container.
- FIG. 16 illustrates a further embodiment of a closure device of the claimed invention, shown in a non-occluded position.
- This embodiment is similar to the embodiment in FIG. 12, except for the positioning of the spring member 678.
- This embodiment similarly includes a spring member 644 that extends from the base portion 634 of the female closure element 630.
- the male closure element 632 of this embodiment includes a base portion 650 and a spring member 678 that extends from the base portion 650.
- the spring member 678 is disposed between and is substantially parallel to the web 654 and the guide wing 662 that are adjacent to the interior 674 of the container.
- the spring member 678 extends towards the interior 672 of the container, and it is integrally attached to the base portion 650.
- FIG. 17 is an illustration of this embodiment in the occluded position, hi this embodiment, the spring member 678 acts upon the female hook portion 642 adjacent to the interior 672 of the container.
- FIGS. 18 and 19 illustrate another embodiment of the claimed invention, shown in a non-occluded and an occluded position, respectively.
- This embodiment is similar to the embodiment in FIGS. 16 and 17.
- This embodiment similarly includes a spring member 744 that extends from the base portion 734 of the female closure element 730.
- the spring member 778 of the male closure element 732 extends towards the exterior 774 of the container.
- FIG. 20 illustrates a further embodiment of the claimed invention, shown in a non-occluded position.
- This embodiment is a combination of the embodiments in FIGS. 12 and 18.
- This embodiment similarly includes a spring member 844 that extends from the base portion 834 of the female closure element 830 and functions as explained previously.
- the male closure element 832 includes a base portion 850 and two spring members 878, 882 that extend toward one another and extend from the base portion 850.
- the first spring member 878 is disposed between and is substantially parallel to the web 852 and the guide wing 860, which are adjacent to the exterior 874 of the container.
- the second spring member 882 is disposed between and is substantially parallel to the web 854 and the guide wing 862, which are adjacent to the interior 872 of the container.
- FIG. 21 is an additional illustration of the embodiment in FIG. 20, shown in an occluded position, m this embodiment, the first spring member 878 acts upon a female hook portion 840 adjacent to the exterior 874 of the container.
- the second spring member 882 acts upon a female hook portion 842 adjacent to the interior 872 of the container.
- FIGS. 22 and 23 illustrate a further embodiment of the disclosed invention, shown in a non-occluded and an occluded position, respectively.
- the embodiment is similar to the embodiment in FIGS. 20 and 21.
- This embodiment similarly includes a spring member 944 that extends from the base portion 934 of the female closure element 930.
- the spring members 978, 982 that extend from the base portion 950 of the male closure element 932 extend away from one another.
- FIGS. 24 and 25 illustrate a further embodiment of the disclosed invention, shown in a non-occluded and an occluded position, respectively.
- the embodiment is similar to and is a combination of the embodiments in FIGS. 10 and 22.
- the female closure element 1030 is the same as the female closure element 330 disclosed in FIG. 10.
- the female closure element 1030 includes two spring members 1044, 1078 that extend from a base portion 1034 of female closure element 1030.
- the spring members 1044, 1078 extend away from one another.
- the male closure element 1032 is the same as the male closure element 932 disclosed in FIG. 22. Similar to FIG. 22, the male closure element 1032 in this embodiment includes two spring members 1082, 1084 that extend from abase portion 1050.
- the spring members 1082, 1084 extend away from one another.
- the spring members 1082, 1084 of the male closure element 1032 maybe adapted to extend toward one another. This other embodiment would have a male closure element 1032 similar to the male closure element 832, illustrated in FIGS.
- FIG. 26 illustrates another embodiment of the present invention, shown in a non-occluded position. This embodiment is similar to the embodiment disclosed in FIG. 2.
- the female closure element 1130 is substantially the same as the female closure element 130 illustrated in FIG. 2.
- Female closure element 1130 includes a base portion 1134, a spring member 1144 and a pair of spaced-apart, parallely disposed webs 1136, 1138. The spring member 1144 and webs 1136, 1138 extend from base portion 1134.
- the male closure element 1132 is similar to the male closure element 132 disclosed in FIG. 2.
- the male closure element 1132 includes a base portion 1150, a pair of spaced-apart, parallely disposed guide wings 1160, 1162 and a pair of spaced- apart, parallely disposed webs 1152, 1154.
- the guide wings 1160, 1162 and webs 1152, 1154 extend from the base portion 1150.
- the guide wings 1160, 1162 and the webs 1136, 1138 are adapted such that the guide wings 1160, 1162 contact and act upon a portion of the webs 1136, 1138 of the female closure element 1130.
- the guide wing 1160 which is disposed adjacent to the exterior 1174 of a container acts upon web 1136 at contact surface 1186.
- the guide wing 1162 which is disposed adjacent to the interior 1172 of a container acts upon web 1138 at contact surface 1188.
- webs 1136, 1138 of the female closure element 1130 are laterally pressed against webs 1152, 1154 of the male closure element 1132, respectively.
- the sealing action of the closure device 1102 increases by having the guide wings 1160, 1162 act upon webs 1136, 1138.
- the additional contact surfaces 1186, 1188 provide additional seals.
- the seal between interlocking web 1136 and web 1152 improves because of the increased pressure between the two members.
- the seal between interlocking web 1138 and web 1154 improves.
- FIGS. 28 and 29 illustrate an additional embodiment, shown in a non- occluded and occluded position, respectively.
- This embodiment is substantially similar to the embodiment disclosed in FIGS. 26 and 27.
- This embodiment similarly includes a spring member 1244 that extends from the base portion 1234 of the female closure element 1230.
- the guide wings 1260, 1262 of this embodiment are adapted to act primarily upon the female hook portions 1240, 1242 of the female closure element 1230. By acting upon the female hook portions 1240, 1242, the female hook portions may be pressed against male hook portions 1256, 1258 at an angle rather than laterally.
- the guide wings 1260, 1262, of this embodiment may be shorter, disposed closer to webs 1252, 1254, or a combination thereof as compared to the guide wings 1160, 1162 of the embodiment disclosed in FIGS. 26 and 27.
- FIG. 30 generally illustrates the positioning of the female and male closure elements 1330, 1332 with respect to a film 1304 that defines a container.
- the female and male closure elements 1330, 1332 include base portions 1334, 1350, respectively.
- the base portions 1334, 1350 attach the female and male closure elements 1330, 1332, respectively, to the same side of the film 1304. This is the typical arrangement of the female and male closure elements 1330, 1332. This arrangement results in a container as illustrated in FIG. 1.
- the female and male closure elements 1330, 1332 may be integrally formed with the film 1304. In that configuration, the film 1304, female closure element 1330, and male closure element 1332 would integrally form a unitary body.
- FIG. 31 illustrates a variation of the arrangement in FIG. 30.
- the female and male closure elements 1430, 1432 are positioned on opposite sides of a film 1404. This configuration can be used to electrically insulate wires or bind together a group of wires. Furthermore, because the female and male closure elements 1430, 1432 provide a sealed closure, this configuration can be used to form a flexible straw.
- the spring member may also be located on the webs.
- the spring member 1544 is located on web 1538 and extends inwardly from the web 1538.
- the spring member 1544 extends in a substantially horizontal direction and substantially perpendicular to the web 1538.
- the spring member 1544 engages the hook portion 1558 as shown in FIG. 32.
- the spring member may extend at other angles relative to the web and may extend inwardly or outwardly from the web.
- the spring member may be located on other webs, such as, webs 1536, 1552, 1554 or the guide wings 1560, 1562 or combinations thereof or in combination with other embodiments disclosed herein.
- the spring member may be used with other closure devices or fastening strips.
- the spring member may be used with: “arrowhead-type” or “rib and groove” fastening strips as described in U.S. Patent 3,806,998; “profile” fastening strips as described in U.S. Patent 5,664,299; or “rolling action” fastening strips as described in U.S. Patent 5,007,143.
- the interlocking fastening strips may comprise "arrowhead- type” or "rib and groove” fastening strips as described in U.S. Patent 3,806,998 and a variation shown in FIG. 34.
- the female fastening strip 1736 may include abase 1734, webs 1736, 1738 and hook portions 1740, 1742.
- the male fastening strip 1732 may include abase 1750, a web 1752, and hook portions 1756, 1758.
- the fastening strips 1732, 1736 are loose such that the hook portions 1740, 1742, 1756, 1758 are not in contact with each other.
- the fastening strips may have an appearance more similar to the fastening strips described in U.S. Patent 3,806,998.
- the fastening strips may include a spring member 1844.
- the spring member 1844 is located on the base 1834 and acts upon the hook 1858.
- the spring member 1844 causes the hook portions to contact each other and create a better seal.
- the spring member 1844 may be located on either fastening strip or both fastening strips.
- the spring member may be located at other locations, such as, the webs 1836, 1838, 1852, or the base 1850.
- the closure devices can be manufactured in a variety of forms to suit the intended use.
- the closure devices may be connected to a container by the use of any of many known methods.
- a thermoelectric device may be applied to a film in contact with the male and female closure elements of the closure device to cause a transfer of heat through the film to produce melting at the interface of the film and the base portions of the closure elements.
- Suitable thermoelectric devices include heated rotary discs, traveling heater bands, resistance-heated slide wires, and the like.
- the connection between the film and the male and female closure elements may also be established by the use of hot melt adhesives, hot jets of air to the interface, ultrasonic heating, or other known methods.
- the bonding of the male and female closure elements to the film stock may be carried out either before or after the film is U-folded to form the bag. hi any event, such bonding is done prior to side sealing the bag at the edges by conventional thermal cutting.
- the male and female closure elements would usually be positioned on the film in a generally parallel relationship with respect to each other, although this will depend on the intended use.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Slide Fasteners (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/882,000 US7322747B2 (en) | 2004-06-29 | 2004-06-29 | Leak proof closure device with spring member |
PCT/US2005/022310 WO2006012229A2 (en) | 2004-06-29 | 2005-06-23 | Leak proof closure device with spring member |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1761438A2 EP1761438A2 (en) | 2007-03-14 |
EP1761438A4 true EP1761438A4 (en) | 2009-05-06 |
EP1761438B1 EP1761438B1 (en) | 2011-03-23 |
Family
ID=35505828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05763162A Expired - Fee Related EP1761438B1 (en) | 2004-06-29 | 2005-06-23 | Leak proof closure device with spring member |
Country Status (14)
Country | Link |
---|---|
US (1) | US7322747B2 (en) |
EP (1) | EP1761438B1 (en) |
JP (1) | JP2008507301A (en) |
KR (1) | KR20070038983A (en) |
CN (1) | CN101426690B (en) |
AU (1) | AU2005267292B2 (en) |
CA (1) | CA2571211A1 (en) |
DE (1) | DE602005027069D1 (en) |
ES (1) | ES2362283T3 (en) |
HK (1) | HK1130232A1 (en) |
MX (1) | MXPA06015078A (en) |
NZ (1) | NZ552123A (en) |
WO (1) | WO2006012229A2 (en) |
ZA (1) | ZA200610499B (en) |
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US7886412B2 (en) | 2007-03-16 | 2011-02-15 | S.C. Johnson Home Storage, Inc. | Pouch and airtight resealable closure mechanism therefor |
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US7857515B2 (en) | 2007-06-15 | 2010-12-28 | S.C. Johnson Home Storage, Inc. | Airtight closure mechanism for a reclosable pouch |
US7874731B2 (en) | 2007-06-15 | 2011-01-25 | S.C. Johnson Home Storage, Inc. | Valve for a recloseable container |
US7967509B2 (en) | 2007-06-15 | 2011-06-28 | S.C. Johnson & Son, Inc. | Pouch with a valve |
US7946766B2 (en) | 2007-06-15 | 2011-05-24 | S.C. Johnson & Son, Inc. | Offset closure mechanism for a reclosable pouch |
US7887238B2 (en) | 2007-06-15 | 2011-02-15 | S.C. Johnson Home Storage, Inc. | Flow channels for a pouch |
US8061898B2 (en) * | 2008-07-15 | 2011-11-22 | S.C. Johnson & Son, Inc. | Venting closure mechanism |
US20100297323A1 (en) * | 2008-10-14 | 2010-11-25 | Solazyme, Inc. | Gluten-free Foods Containing Microalgae |
US8215839B2 (en) * | 2009-06-02 | 2012-07-10 | The Glad Products Company | Multistep occluding zipper with sealing features |
US8272107B2 (en) * | 2009-10-28 | 2012-09-25 | S.C. Johnson & Son, Inc. | Vacuum-actuated closure mechanism for a resealable pouch |
US8550716B2 (en) | 2010-06-22 | 2013-10-08 | S.C. Johnson & Son, Inc. | Tactile enhancement mechanism for a closure mechanism |
US8087826B1 (en) | 2010-06-25 | 2012-01-03 | Pactiv Corporation | Slider track with improved seal strength |
US9327875B2 (en) | 2010-10-29 | 2016-05-03 | S.C. Johnson & Son, Inc. | Reclosable bag having a loud sound during closing |
US8469593B2 (en) | 2011-02-22 | 2013-06-25 | S.C. Johnson & Son, Inc. | Reclosable bag having a press-to-vent zipper |
US8568031B2 (en) | 2011-02-22 | 2013-10-29 | S.C. Johnson & Son, Inc. | Clicking closure device for a reclosable pouch |
JP5746576B2 (en) * | 2011-07-01 | 2015-07-08 | 株式会社クレハ | Zipper and zipper bag |
EP3061701B1 (en) * | 2012-02-03 | 2018-10-10 | Toppan Printing Co., Ltd. | Pouch and pouch with enclosed contents |
CN102602580B (en) * | 2012-03-01 | 2015-04-29 | 上海鸿研物流技术有限公司 | Connector and transfer container with same |
FR2988701B1 (en) * | 2012-04-03 | 2014-04-11 | S2F Flexico | CLOSURE DEVICE FOR SACHETS OR EQUIVALENTS HAVING IMPROVED TOUCH AND SOUND EFFECT, SACHET THUS OBTAINED AND METHOD OF MAKING SAME |
US20130287322A1 (en) * | 2012-04-27 | 2013-10-31 | Lifeng Gong | Leak-proof slider assembly |
US20130299512A1 (en) * | 2012-05-14 | 2013-11-14 | Naira Gevorkian | Collapsible dispensing tube with internal press-to-close sealers to prevent reverse flow of the content towards the closed end |
US9133598B2 (en) | 2013-01-17 | 2015-09-15 | Polymics, Ltd. | Sealed interconnected mat system |
JP6379003B2 (en) * | 2014-10-09 | 2018-08-22 | 株式会社タキガワ・コーポレーション・ジャパン | Chuck with child resistance function and packaging bag with chuck |
CN105625833B (en) | 2014-10-27 | 2021-03-16 | 因特瓦产品有限责任公司 | Mechanical seal between actuator housing and cover and method of providing a seal between actuator housing and cover |
US9790002B2 (en) | 2015-01-29 | 2017-10-17 | Inteplast Group Corporation | Bag with gripping panels |
US9624003B1 (en) | 2015-11-24 | 2017-04-18 | Inteplast Group Corporation | Bag with gripping bands |
CN112145207A (en) * | 2020-10-15 | 2020-12-29 | 天津大学 | HDPE (high-density polyethylene) membrane coupling interlocking connecting device and using method thereof |
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2004
- 2004-06-29 US US10/882,000 patent/US7322747B2/en not_active Expired - Fee Related
-
2005
- 2005-06-23 MX MXPA06015078A patent/MXPA06015078A/en active IP Right Grant
- 2005-06-23 CA CA002571211A patent/CA2571211A1/en not_active Abandoned
- 2005-06-23 ES ES05763162T patent/ES2362283T3/en active Active
- 2005-06-23 NZ NZ552123A patent/NZ552123A/en not_active IP Right Cessation
- 2005-06-23 DE DE602005027069T patent/DE602005027069D1/en active Active
- 2005-06-23 EP EP05763162A patent/EP1761438B1/en not_active Expired - Fee Related
- 2005-06-23 CN CN2005800218388A patent/CN101426690B/en not_active Expired - Fee Related
- 2005-06-23 KR KR1020067027623A patent/KR20070038983A/en not_active Application Discontinuation
- 2005-06-23 WO PCT/US2005/022310 patent/WO2006012229A2/en not_active Application Discontinuation
- 2005-06-23 AU AU2005267292A patent/AU2005267292B2/en not_active Ceased
- 2005-06-23 JP JP2007519292A patent/JP2008507301A/en active Pending
-
2006
- 2006-12-14 ZA ZA200610499A patent/ZA200610499B/en unknown
-
2009
- 2009-09-04 HK HK09108099.4A patent/HK1130232A1/en not_active IP Right Cessation
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US5689866A (en) * | 1995-05-30 | 1997-11-25 | Showa Highpolymer Co., Ltd. | Plastic zipper |
US6045264A (en) * | 1998-01-29 | 2000-04-04 | Miniea; Stephen H. | Self-sealing, disposable storage bag |
Also Published As
Publication number | Publication date |
---|---|
WO2006012229A2 (en) | 2006-02-02 |
US20050286813A1 (en) | 2005-12-29 |
EP1761438A2 (en) | 2007-03-14 |
HK1130232A1 (en) | 2009-12-24 |
ES2362283T3 (en) | 2011-06-30 |
AU2005267292B2 (en) | 2011-09-15 |
CA2571211A1 (en) | 2006-02-02 |
DE602005027069D1 (en) | 2011-05-05 |
CN101426690A (en) | 2009-05-06 |
JP2008507301A (en) | 2008-03-13 |
NZ552123A (en) | 2010-11-26 |
US7322747B2 (en) | 2008-01-29 |
CN101426690B (en) | 2011-01-12 |
ZA200610499B (en) | 2008-07-30 |
MXPA06015078A (en) | 2007-03-01 |
AU2005267292A1 (en) | 2006-02-02 |
EP1761438B1 (en) | 2011-03-23 |
KR20070038983A (en) | 2007-04-11 |
WO2006012229A3 (en) | 2009-02-05 |
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